MP20142

Dual Channel, 200mA Linear

Regulator With Programmable

Output Voltage and Output Discharge

MP20142 Rev.0.9

www.MonolithicPower.com

1

7/12/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2010 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP20142 is a dual-channel, low noise, low

dropout and high PSRR linear regulator with

programmable output voltage. The output

voltage of MP20142 ranges from 1.2V to 3.3V

in 100mV increments and 2.5% accuracy by

operating from a +2.5V to +5.5V input. The

different

output

voltage

options

can

be

programmed by setting the voltage of P1 and

P2 to VDD, GND or floating. There are 9

different voltage settings in one chip. Each

output channel can supply up to 200mA of load

current.

The MP20142 uses two internal P-channel

MOSFETs

as

the

pass

devices,

which

consumes 150µA supply current when both

channels are enabled at no load condition. The

EN1 and EN2 pins control each output

respectively. When both channels shutdown

simultaneously,

the

chip

turns

off

and

consumes nearly zero operation current which

is suitable for battery-power devices. The

MP20142 also features current limiting, output

discharge and over temperature protection.

It is available in a TQFN8 (2mm×2mm) package.

FEATURES

• Programmable Output Voltage

• Up to 200mA Output Current (Each LDO)

• 60mV Dropout at 100mA Load

• Dual Shutdown Pins Control Each Output

• 75dB PSRR at 1kHz

• Current Limiting and Thermal Protection

• Short Circuit Protection

• Two LDOs in TQFN8 (2mm×2mm) Package

• Output Load Discharge when Disabled

APPLICATIONS

• Cellular Phones

• Battery-powered Equipment

• Laptop, Notebook, and Palmtop Computers

• Hand-held Equipment

• Wireless LAN

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks

of Monolithic Power Systems, Inc.

TYPICAL APPLICATION